7
Drill a Hole for the Faucet in a Porcelain Sink
NOTICE
Most sinks are pre drilled with 1 ½" or 1 ¼" diameter hole that you can use for your RO
faucet. (If you are already using it for a sprayer or soap dispenser, see step 1)
Porcelain sinks are extremely hard and can crack or chip easily.
Use extreme caution when drilling. Watts accepts no responsibility for damage resulting
from the installation of faucet. Diamond tip bit recommended.
1) Determine desired location for the RO faucet on your sink and place a piece of masking tape
over where the hole is to be drilled. Mark the center of the hole on the tape.
2) Using a variable speed drill set on the slowest speed, drill a
1
/8" pilot hole through both porce-
lain and metal casing of sink at the marked center of the desired location. Use lubricating oil
or liquid soap to keep the drill bit cool (If drill bit gets hot it may cause the porcelain to crack or
chip).
3) Using a 1 ¼
"
hole saw, proceed to drill the large hole. Keep drill speed on the slowest speed
and use lubricating oil or liquid soap to keep the hole saw cool during cutting.
4) Make sure the surroundings of the sink are cooled before mounting the faucet to the sink after
drilling and remove all sharp edges.
PUNCH A HOLE FOR THE FAUCET IN A STAINLESS STEEL SINK
NOTICE
If mounting faucet to a Stainless Steel Sink you will need a ½" & 1 ¼" hole punch.
The faucet opening should be centered between the back splash and the edge of
the sink, ideally on the same side as the vertical drain pipe.
Drill a ¼" pilot hole. Use a ½" hole punch and an adjustable wrench to punch the
hole in the sink. Change to the 1 ¼" hole punch to enlarge the hole.
The faucet can now be installed.
5) Drill a ¼" pilot hole. Use a ½" hole punch and an adjustable wrench to punch the hole in the
sink. Change to the 1 ¼" hole punch to enlarge the hole.
The faucet can now be installed.
